How to disable certain types of notifications?

Summary:

Our frontline agents receive a notification when an incident assigned to the specific agent is updated etc. However, they don't need this feature so we would love to disable this specific type, but without disabling the option for them to receive broadcast notifications.

I know that under "message templates" I can untick the different types of notifications not needed, but even if I do so, the notifications keep appearing.

Some time ago I wanted to disable the Outreach specific notifications for another team, but after raising an SR with Oracle Support I got the answer that you could not disable just one type. It's all or nothing